Bookcase



FIG. 1 is a front perspective view of a bookcase showing my new design;

FIG. 2 is a rear and side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is an opposite side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a bottom view thereof. 

I claim, the ornamental design for a bookcase, as shown and described. 